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Revealing the shear band cracking mechanism in metallic glass by X-ray tomography
Qu, R. T.; Wang, S. G.; Wang, X. D.; Liu, Z. Q.; Zhang, Z. F.; Qu, RT; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2017-05-01
发表期刊SCRIPTA MATERIALIA
ISSN1359-6462
卷号133页码:24-28
摘要The mechanism of shear band (SB) cracking or cavitating under the stress state free from negative pressure is one of long-standing unsolved issues in metallic glass (MG). Here we show key findings including the 3D imaging on the evolution of SB cracking during compressing a ductile MG. Discontinuous and non-coplanar cracks with long narrow-thin morphology were observed in a shear-banding affected zone that is much thicker than the SB core. The results demonstrated that the SB cracking originates possibly from (1) the creation and coalescence of excess free volume, (2) the shearing of non-planar SB, and/or (3) the SB interaction. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.; The mechanism of shear band (SB) cracking or cavitating under the stress state free from negative pressure is one of long-standing unsolved issues in metallic glass (MG). Here we show key findings including the 3D imaging on the evolution of SB cracking during compressing a ductile MG. Discontinuous and non-coplanar cracks with long narrow-thin morphology were observed in a shear-banding affected zone that is much thicker than the SB core. The results demonstrated that the SB cracking originates possibly from (1) the creation and coalescence of excess free volume, (2) the shearing of non-planar SB, and/or (3) the SB interaction. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属[qu, r. t. ; wang, s. g. ; wang, x. d. ; liu, z. q. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china
关键词Metallic Glass Shear Band Cracking X-ray Tomography Compression
学科领域Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者National Natural Science Foundation of China (NSFC) [51331007, 51301174, 51501190]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78173
专题中国科学院金属研究所
通讯作者Qu, RT; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Qu, R. T.,Wang, S. G.,Wang, X. D.,et al. Revealing the shear band cracking mechanism in metallic glass by X-ray tomography[J]. SCRIPTA MATERIALIA,2017,133:24-28.
APA Qu, R. T..,Wang, S. G..,Wang, X. D..,Liu, Z. Q..,Zhang, Z. F..,...&Zhang, ZF .(2017).Revealing the shear band cracking mechanism in metallic glass by X-ray tomography.SCRIPTA MATERIALIA,133,24-28.
MLA Qu, R. T.,et al."Revealing the shear band cracking mechanism in metallic glass by X-ray tomography".SCRIPTA MATERIALIA 133(2017):24-28.
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